1. 2018-07-24 [5] [Sip-implementors] Number Translation using Rolando San 2. 2018-07-17 [8] [Sip-implementors] Offer/answer model in ear Alex Balash 3. 2018-07-17 [2] Re: [Sip-implementors] is Contact Header Man Dale R. Wor 4. 2018-07-12 [3] [Sip-implementors] RFC 6337, Section 5.3. Ho Dale R. Wor 5. 2018-07-04 [8] [Sip-implementors] SIP 422 and RFC 4028 Aman